# DynamicProfileReloaderHolder.java

    /*
     *  Copyright (c) 2021, WSO2 Inc. (http://www.wso2.org) All Rights Reserved.
     *
     *  WSO2 Inc. licenses this file to you under the Apache License,
     *  Version 2.0 (the "License"); you may not use this file except
     *  in compliance with the License.
     *  You may obtain a copy of the License at
     *
     *    http://www.apache.org/licenses/LICENSE-2.0
     *
     * Unless required by applicable law or agreed to in writing,
     * software distributed under the License is distributed on an
     * "AS IS" BASIS, WITHOUT WARRANTIES OR CONDITIONS OF ANY
     * KIND, either express or implied.  See the License for the
     * specific language governing permissions and limitations
     * under the License.
     */

    package org.apache.synapse.transport.dynamicconfigurations;

    import java.util.ArrayList;
    import java.util.List;
    import java.util.concurrent.Executors;

    /**
     * Class which holds all DynamicProfileReloaders created.
     */
    public class DynamicProfileReloaderHolder {

        private static DynamicProfileReloaderHolder instance = new DynamicProfileReloaderHolder();

        private static List<FileUpdateNotificationHandler> notificationHandlers = new ArrayList();

        public static DynamicProfileReloaderHolder getInstance() {
            return instance;
        }

        public void addNotificationHandler(FileUpdateNotificationHandler handler) {
            notificationHandlers.add(handler);
        }

        public void reloadAllHandlers() {
            for (FileUpdateNotificationHandler handler : notificationHandlers) {
                Executors.newSingleThreadExecutor().execute(handler);
            }
        }

    }